1001/1000

Interval information

Ratio	1001/1000
Factorization	2-3 × 5-3 × 7 × 11 × 13
Monzo	[-3 0 -3 1 1 1⟩
Size in cents	1.730369¢
Names	fairytale comma, sinbadma
FJS name	[math]\displaystyle{ \text{dd2}^{7,11,13}_{5,5,5} }[/math]
Special properties	superparticular, reduced
Tenney height (log2 nd)	19.933
Weil height (log2 max(n, d))	19.9345
Wilson height (sopfr(nd))	52
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1001/1000, otherwise known as the fairytale comma, or the sinbadma, is an unnoticeable 13-limit comma by which a stack consisting of 7/5, 11/10, and 13/10 exceeds the octave, or equivalently stated, an octave reduced stack consisting of 7/4, 11/8, and 13/8 exceeds the 125/64 classic augmented seventh.

See also

• Sinbadmic chords
• Unnoticeable comma